7th Math End of Year Review

Integer Operations

100

What is the solution?

-15+15

0

200

What is the solution?

34 - (-22)

56

300

What is the solution?

-80 times -32

2560

400

What is the solution?

-144 divided by 12

-12

500

What is the solution? (PEMDAS)

3² - (14 - (-2)) x -12

-183

Equations

100

Find the solution.

x + 10 = (-3)

x = (-13)

200

Find the solution.

-4x = -24

x = 6

300

Find the solution.

2x - 7 = 3

x = 5

400

Find the solution.

-13 = -9x - 13

x = 0

500

Find the solution. (x/5 means x divided by 5)

-1 = 7 - (x/5)

x = 40

Inequalities

100

Find the solution.

x - 10 > 12

x > 22

200

Find the solution.

-5x < 50

x > -10

300

Find the solution.

2x - 5 > 15

x > 10

400

Find the solution.

-11 - 5x > -41

x < 6

500

DAILY DOUBLE!!!

Find the solution.

7x - 2 < 6 + 3x

x < 2

Percents (w/Calc)

100

What is 20% of 100?

20

200

15 is what percent of 30?

50%

300

If you leave a 18% tip on a dinner that cost $75. How much is the total paid? 

$88.50

400

What is the percent change? 

Old: $20  New: $15

-25% or 25% decrease

500

How much would the tax be if the tax rate was 6.25% for a purchase of $300?

$18.75

Probability

100

Write the probability as a decimal.

P(flipping a coin and landing on tails)

0.5

200

Write the probability as a percentage.

A spinner with 5 equal sized sections labeled 1-5

P(landing on 4)

20%

300

Write the probability as a fraction.

P(a dice being rolled and it lands on an even number)

1/2

400

Write the probability as a fraction, decimal, and percentage.

P(pulling a random card from a deck of cards, a heart)

1/4, 0.25, and 25%

500

If correct, your team doubles your points. If incorrect, your team loses half your points.

Write the probability as a fraction.

P(flipping a coin, landing on heads three times in a row)

1/8